Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1990-01-05
1991-08-27
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204302, 210748, B01D 1706
Patent
active
050430483
ABSTRACT:
An apparaatus and method for continuously removing liquid from an aqueous suspension; the apparatus consists of a filter housing; an electrofilter disposed within the housing to provide a crossflow chamber and filtrate chamber within the housing; an inlet for supplying a suspension to the crossflow chamber and an outlet for removing a suspension reduced in liquid content from the crossflow chamber, both the inlet and the outlet may be disposed so as to provide a crossflow of the suspension across the surface of the electrofilter or disposed to provide a batch process with optional stirring; and an outlet for removing liquid from the filtrate chamber.
The method for continuously separating a liquid from an aqueous suspension while reducing membrane or filter fouling includes providing a crossflow apparatus having an electrofilter disposed therein; pumping the aqueous suspension into the crossflow apparatus at a pressure adapted to cause flow of filtrate through the electrofilter; and concurrently with pumping the suspension into the apparatus supplying electrical energy to the electrofilter at a voltage adapted to reduce fouling of the filter.
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Gorgos Kathryn
Niebling John F.
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